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JUNOS Enterprise Routing by Harry Reynolds, Doug Marschke

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Chapter Review Questions

  1. After defining an aggregate route for 0/0, you note that the M7i’s system board CPU utilization increases. What might account for this?

    1. The default route is attracting traffic that is not specifically matched, leading to a reject action and corresponding ICMP error packet generation

    2. The default route is attracting traffic that is not specifically matched, leading to discard and ICMP error packet generation

    3. The default route is attracting traffic that matches more specific prefixes and is being forwarded, hence the increased CPU usage

    4. The default route is attracting traffic that matches more specific prefixes and is being dropped, hence the increased CPU usage

  2. Which of the following defines a floating static route that backs up an OSPF externally learned route?

    1. Set static route 1.1.10/24, next hop t1-0/0/2

    2. Set static route 1.1.10/24, next hop t1-0/0/2, preference 11

    3. Set static route 1.1.10/24, next hop t1-0/0/2, preference 151

    4. Set static route 1.1.10/24, next hop t1-0/0/2, qualified next hop

    5. None of the above

  3. You issue the command set routing-options autonomous-system loops 3. What does it do?

    1. Tolerates as many as three instances of the local AS number in transmitted route updates

    2. Tolerates as many as three instances of the local AS number in received route updates

    3. Tolerates as many as two instances of the local AS number in transmitted route updates

    4. Tolerates as many as two instances of the local AS number in received route updates

  4. After defining a generated route for 10/8, ...

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